in a 3 km race the speeds of A and B are in the ratio of 6:5 and A wins by 10 secs.what is the time taken by B to finish the race.also to end the race in dead heat what % of total distance A should give the start up to B

• here speed ratios are 6:5 from this we can derive time ratios of A ,B i.e 5:6
  diff is 1 so this 1 is 10sec 6------>60sec(1min) this 1min is time taken by B
  next one is %of start given A to B is 1/6*100 =16.66%(diff 1 on 6)
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